Location:	38°54.50' N 77°34.06' W - locator FM18FV17VX - show map 8.1 km East bearing 86° from Bull Run Mountain Estates, Prince William County, Virginia, United States [?] 12.2 km Northeast bearing 29° from Haymarket, Prince William County, Virginia, United States 46.0 km West bearing 272° from Washington, D. C., Washington, D.C., United States 92.7 km Southwest bearing 243° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-10-17 00:38:14 UTC (17d 14h46m ago) 2025-10-16 20:38:14 EDT local time at Bull Run Mountain Estates, United States [?]
Device:	Open Source: Xastir (software, Linux/Unix)
Last path:	KR4EXZ>APX220 via TCPIP*,qAC,EIGHTH
Positions stored:	1
Other SSIDs:	KR4EXZ-5

This page shows real-time information collected from the Automatic Position Reporting System Internet network (APRS-IS). APRS is used by amateur (ham) radio operators to transmit real-time position information, weather data, telemetry and messages over the radio. A vehicle equipped with a GPS receiver, a VHF transmitter or HF transceiver and a small computer device called a tracker transmits it's location, speed and course in a small data packet, which is then received by a nearby iGate receiving site which forwards the packet on the Internet. Systems connected to the Internet can send information on the APRS-IS without a radio transmitter, or collect and display information transmitted anywhere in the world.